<template>
  <div>nav..
    <p>{{num}}</p>
    <button @click="num++">按钮</button>
  </div>
  
</template>
<script>


export default{
  name:"CustomNavbar",
  data(){
   return{
    num:0,
   } 
  }
}
</script>

<style>

</style>